You can review the date you selected for the direct debit on the filing instructions worksheet. If you didn't download this, you can find it on your tax timeline, under "some things I can do", click download all forms and worksheets.
Read these TurboTax FAQs for more information about the IRS and auto debits.https://ttlc.intuit.com/replies/3299924
https://ttlc.intuit.com/replies/3300043
